Air–liquid interface culture enables airway epithelial cells to differentiate into a pseudostratified cell layer, consisting of ciliated cells, goblet/secretory cells, and basal cells (Ghio et al., Part Fibre Toxicol 10:25, 2013). This technique is critically important for in vitro studies of lung diseases such as asthma, chronic obstructive pulmonary disease, and cystic fibrosis, since differentiated airway epithelial cells are more representative of the in vivo lung environment than non-differentiated cells (Derichs et al., FASEB J 25:2325–2332, 2011; Hackett et al., Am J Respir Cell Mol Biol 45:1090–1100, 2011;Schneider et al., Am J Respir Crit Care Med 182: 332–340, 2010). Here we describe the process of isolating and expanding human and mouse airway epithelial cells, as well as differentiation of airway epithelial cells by air–liquid interface culture.
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The authors thank Max A. Seibold, Reem Al Mubarak, Nicole Roberts, and Reena Berman for their technical assistance in cell culture methodology.
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